Sliding and swinging window-sash balance



Feb. 5, 1929.

R. AVERSA SLIDING AND SWINGING WINDOW SASH BALANCE Filed Dec.16, 1927 I'll III- "I I AIAIAIMwa/AII/unr any/"'1'. IyAlll Patented Feb. 5, 1929..

UNITED STATES PATENT OFFICE.

RAIFAELE' am, or NEW'YORK, N. Y.

smnme AND sw meme wmnow-sasn BALANCE- Application filed December 1 ,1927. Serial No. 240,479,

, ,This invention relatestoa new and useful device in the nature ofa slidable and extensilble window for houses, buildings and the li (e. I

The object of the invention. is to provide a slidable andextensible window of novel construction and arrangement'of parts hereinafter more fully described, claimed'and illustrated in the accompanying drawing.

Fig. 1 is a top plan view of my improved slidable and extensible window. J i Fig. 2 is a front, inside elevational view thereof. y I

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2. a I

Fig. 4 is an enlarged transverse sectional View taken on the line 4-4 of Fig. 2. Fig. 5 is a sectional view taken on the, line 55 of Fig.1. I

Fig. 6 is a sectional view taken on the line I to and extended inwardly from the said frame. The window frames 10 and 11 are hinged as at 18 and 19, in the usual manner, to the supports 20 and 21,'respectively, slidably mounted vertically insuitable grooves formed in one side of the window casing'22.

The supports 20 and 21, are provided with.

rear inwardly extended elements'23 and 24, respectively. adapted to receive the adjacent portion of the frames 10 and 11, respectively,

I when the said frames are in a closed position, so as to provide a storm proof joint. The opposite supports 20 and 21are slidably mounted in the opposite side of the said 'window casing 23, and are provided with similarly formed elements 23 and 24, adapted to receive the adjacent portions of the said frames 10 and 11 for the purpose as above setforth. 8

Catches 25 and 26 are slidably mountedin the plate members 27 and 28, respectively, secured to the sidesfof the'frames 10 andll respectively, opposite the hinges 18 and 19,

and are adapted to slidably engage in openings formed in the adjacent side of the cas ing 23, as'av means of holding the said frames in a closed position. The above described construction such as will permit the frames 10 and 11 to be'vertically raised or lowered, or

slidably positioned vertically as may be desire.d,and which will permitthe saidu per andlower frames 10 and 11't0 behinge in: wardly as designated by the reference numerals 29 and 30 respectively. 1 It is understoodthat the said lower frame 11 is com-' paratively wider, than the upper fra'm ei l'O, Y

so 'as'to allow the said lower frame to be hinged inwardly, when positioned at the rear of'the-lower frame 11 as clearly shown'in Fig.4.yl Vertical strips 31 and .32 are secured to and extended inwardly from the sides of the said. casing22, and are positioned intermediate the said supports'20, .21 and 20, 21, respectively, "co-acting witl the grooves formed in the sides of thefcasing22, adapted to receive the said supports," as a means of permitting the said supports to be easily slidably mounted in the. said casing. The threaded members 33 and 34, thumb screws, set screws, or the like, are threadedly mounted in the casing 22, and are adapted to engage the supports 20, 20, 21 and 21, respectively, as a means of holding the said frames 10 and 11 in any desired position.

Flexiblemembers 35 and 36, 37 and 38,"are

secured intermediate tothe supports 20', 20, 21 and21, respectively, and are extended upwardly therefrom and are extended over the pulleys 39, 40, 41 and 42 respectively, and secured thereto. Grooves 43 are formed in the above mentioned supports adapted to freely receive the said flexible members. leys 39, 40, 41 and 42 are rotatively mounted on the shafts43 and 44, respectively carried i i The pulin the brackets 45, 46, 47 and 48 secured to r and extended upwardly from the top portion. of the said casing 22. Coil springs 49 co-axial on the shafts 43 and 44, are secured thereto and to the pulleys 39, 40, 41 and 42. The collars 50 and 51 are secured'to theshafts 43 and 44 and. positioned adjacent to the pulleys 39, 40, 41 and 42 and to the'springs 49 as a means of holding the said pulleys and spring in position'on the said shafts 43 and 44.

' The above described construction is such as willlpermit-the said springs 49 to assist in .drical member 52, and is held in any desired position thereon by means of the threaded member 59, a set screw or the like threadedly mounted in the counter-weight 57 and adapted to engage the arm element 58. The above described construction is such as will permit the cylindrical member 52 to be held in engagement with the pulleys 39, 40, 41 and 42, as a means of partially nullifying the action of the said springs 49 as a means of providing a smooth action mechanism. It is obvious that the counter-weight 57 may be positioned r on the arm element 58 so as tosecure the desired engagement of the said cylindrical member 52. I

While I have shown and described a preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention what I claim as new and desire to protect by United States Letters Patent is:

1. A device of the class described, comprising a window sash with sash support members slidably mounted in a window frame, a spring operated pulley rota'tively mounted and arranged for aiding motion of the said sash support members, a cylindrical member eccentrically mounted for rotation, an arm extended from the cylindrical member, a counterweight adjustably mounted on the arm, I

and the said cylindrical member being arranged to press against the said pulley with forces as determined by the position of the said counterweight for partially nulifying the action of the spring operated providing smoother action. 7

pulley for 2. In a device of the class described, a spring operated roller rotatively mounted and arranged for aiding motion of a sash member, a cylindrical member mounted for rotation, an arm extended from the cylindricalmember, a counterweight adjustably mounted on the arm, and the said cylindrical member being arranged to press against the said pulley with forcesas determined by the position of the said countereccentrically weight for partially nullifying the action of the spring operated pulley for providing smoother action.

In testimony whereof I have afiixed my signature.

- RAFFAELE AVERSA. 

